if x=3sin(delta) and y=3 cos(delta) -2, eliminate delta to find an equation relating x and y  



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Posted on (Answer #1)

Given, `x=3sindelta` , `y=(3cosdelta-2)`

square and add both sides of the two equations,





add 4y+4 to bothe sides of the equation,

`rArr x^2+y^2+4y+4=9`

`rArr x^2+(y+2)^2=9`

`rArr x^2/3^2+(y+2)^2/3^2=1`



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